Senior Full Stack Developer

We're looking for an experienced Full Stack Developer who is ready to take their skills to the next level and help us build complex, data-driven user interfaces on the web from our studio in Utrecht.

Join our team

CLEVER°FRANKE is an enthusiastic, multi-disciplinary team of 40+ people with 15 different nationalities from across the world, and we use English as a primary language to communicate and collaborate. We are interaction designers, visual designers, developers, project managers, data analysts and others, all with a passion for what we do.

As a senior Full Stack Developer, you will work on cutting-edge projects that make a real difference. Your role will span the entire development spectrum. You will be one of our go-to team members for defining back-end solutions, CI/CD pipelines, and hosting, while also bringing experience in crafting intuitive front-end interfaces. As a technologist, you will take a leading role in projects and collaborate with a multi-disciplinary team to produce high-quality digital products. You take ownership of technical solutions from concept to delivery.

We are looking for someone who is curious, embraces emerging technologies, and enjoys exploring modern development practices, including AI-assisted and agentic engineering workflows that enhance the way we design, build and maintain software. You thrive in fast-paced environments, possess a keen analytical eye, adopt a pragmatic yet flexible approach, and mentor fellow developers on projects.

Our tech stack is ever evolving. We are not married to any specific technology and are pragmatic: we choose the stack that fits the job best. We are always open to fresh perspectives on building, scaling, and maintaining software projects. We’re continuously exploring and innovating, and like to work with emerging technologies like AI, AR/VR and physical interfaces.

Though we always adapt our approach to the requirements of a specific project, the development workflow of a typical C°F project will generally include submitting pull requests that trigger CI/CD pipelines with various code-quality checks and automated deployment to a serverless platform like Vercel or Netlify. Team members will perform code reviews to safeguard code quality as well as QA reviews to make sure all work we do meets the high quality standard that we set for ourselves.

What you bring

As a senior Full Stack Developer, you will bring at least 7 years of experience in full-stack development, with a proven track record in backend development. You have an innovative mindset and eagerness to explore new technologies. Next to that, you will bring:

• Expertise in API design and databases (e.g. Node.js, Python, OpenAPI, Swagger, GraphQL, PostgreSQL)
• Experience with Typescript
• Solid front-end skills: experience with reactive frameworks like React and styling solutions like CSS-in-JS, Tailwind, etc
• Familiarity with containerization (Docker) and cloud deployment platforms (AWS, Azure, Vercel, Coolify)
• Proficiency in Git, code reviews and CI/CD workflows (e.g. GitHub Actions, Gitlab CI)
• Excellent communication skills in English

We’d be especially excited if you also have experience in:

• Experience with search engine technology like ElasticSearch
• Experience with agentic engineering workflows (e.g. Claude Code)
• Different CMS (both headless and traditional)
• Experience developing back-end solutions for AI-driven products, including integration with LLMs through APIs (e.g. OpenAI, Anthropic) or self-hosted models
• Experience with infrastructure-as-code tooling (e.g. Terraform)

We’ll give you

• Support from a friendly, passionate, down-to-earth team
• A personal development budget of 1000 euro per year for trainings tailored to your personal and professional growth
• A personal wellbeing budget of 250 euros per year (purchase a bike, fitness or yoga membership)
• Two extra holidays per calendar year, because we all have events in our life that we need time for (weddings, celebrating religious or cultural events)
• Hybrid working from our studio or home – (at least 2 days per week in the studio)
• A healthy, abundant lunch every day in the studio
• Paid train expenses from your home to the studio
• A collective pension plan
• A MacBook and all the peripherals you need
• Inspiring team events such as our annual team prototyping day, team trainings, sport events and conference visits

We’ll support you

We find it important that you grow and challenge yourself, and we want to ensure that you are supported in this. That’s why we offer:

• Training courses tailored to your experience level and needs, personal development planning, and feedback sessions
• Our People & Culture Manager, who will help you with your professional and personal development
• CLEVER°FRANKE Development week: about 3 times a year, we organize a week where the entire studio fully focuses on personal and professional growth, outside of client projects
• CLEVER°FRANKE Prototype Day: a day full of creativity, innovation, learning, and working with colleagues in a hands-on environment

Please note that for this position we are looking for someone who has EU working permit.